21899144

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{389}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 42681600

約数和(自身を除く): 20782456

約数列:

[1, 2, 4, 8, 31, 62, 124, 227, 248, 389, 454, 778, 908, 1556, 1816, 3112, 7037, 12059, 14074, 24118, 28148, 48236, 56296, 88303, 96472, 176606, 353212, 706424, 2737393, 5474786, 10949572, 21899144]

約数ペア:

[(1, 21899144), (2, 10949572), (4, 5474786), (8, 2737393), (31, 706424), (62, 353212), (124, 176606), (227, 96472), (248, 88303), (389, 56296), (454, 48236), (778, 28148), (908, 24118), (1556, 14074), (1816, 12059), (3112, 7037)]